DD270638A3 - HOEHER CONCENTRATED COATING SPOONING - Google Patents

Abstract

The invention relates to higher-concentrated fabric softeners for domestic and commercial use. The compositions contain in an aqueous base according to the invention 5-10% by weight of quaternary triethanolamine esters of fatty acids of chain length C12-C22, 0.5-0.8% by weight of water-soluble or water-dispersible salts of primary fatty amines of chain length C14- C22, 0.3-0.8% by weight of dialkanolamides of fatty acids of chain length C12-C22 having 2-3 C atoms in the alkanol radicals and 0.1-0.3% by weight of glycols. The agents have improved performance properties.

Description

Field of application of the invention

The invention relates to higher-concentrated laundry softeners which can be used for laundry after-treatment in household and commercial.

Characteristic of the known state of the art

In recent years, fabric softeners are being increasingly produced in higher concentrated form in order to improve the packaging economy and to provide convenience on the consumer side.

Quaternary fatty acid triethanolamine esters are known as textile finishing agents (K. Lindner: Tenside Textile Auxiliaries Washing Raw Materials, 2nd Edition Volume 1, page 491, 904, 979, Stuttgart 1964) and are used in combination with other active ingredients and excipients for producing higher-concentration laundry softeners (DO-WP 159263,230434,230711, 234687).

Concentrated laundry softeners according to DD-WP 159263 contain 8-17Ma .-% quaternary fatty acid triethanolamine esters, 2-4Ma .-% alkyl polyglycol ethers and 16-19Ma .-% glycols. Although these agents give good fabric softening effects, they also reduce at the same time - as experimental results and also of other quaternary N-surfactants with * aliphatic! Construction (K. Bräuer, H. Nüßlein and R. Puchta: soaps - oils - fats - waxes 111 [19C5], 337-342) - the absorbency of treated textiles. The decrease in Saugfahigkr.it (hydrophobing) manifests itself, for. in treated towels adversely. In the case of textiles worn close to the body, the hydrophobing often leads to a feeling of discomfort, because body sweat is less well absorbed. The high Glycola'iteil does not contribute to fabric softening effect and is not acceptable cost.

Alkylpolyglycolether can reduce the fabric softening effect of cationic surfactants by competitive adsorption on tissue (K. Bräuer, H. Fehr and R. Puchta: surfactants Detergents 17 (1980), 1) and steal an additional cost factor. The higher-concentrated fabric softener according to DD-WP 230434 included up to 20% by weight of quaternary fatty acid triethanolamine ester, 0.5-6% by weight of oxyethylated and dimethylsulfate-quaternized primary fatty amine, 0.5-3% by weight of free primary fatty amine and optionally up to 3% by weight of alkyl polyglycol ethers also have several disadvantages: free primary fatty amines are only sparingly soluble in water and hardly develop cationic surfactant properties, they do not make a significant contribution to the fabric softening effect.According to experience, aqueous dispersions of free primary fatty amines can only be prepared with the aid of dispersants. Alkyl polyglycol ether) is with the already connected above disadvantages. The preparation of ethoxylated fatty amines and the subsequent quaternization incur additional costs.

DD-WP 230711 proposes concentrated fabric softeners which comprise 5-15% by weight of fatty acid triethanolamine ester, 1-5% by weight of salts of primary fatty amines and small amounts of alkanoic acid dialkanolamide and water-soluble salts. These formulations give very good softening effects, but also hydrophobize treated textiles considerably. According to DD-WP 234687 higher concentrated, aqueous dispersions of quaternary Fettsäuretriethanolamintstern be prepared for use as laundry softeners when 0.5-5Ma .-% of anoxethylierten primary Alkylaminsurd2-8Ma .-% of a 20-50% Polyethy lendispersion be added. The materials used pollute the dispersions on the east side. Polyethylene chemically represents a high molecular weight paraffin. As is known, paraffins are part of hydrophobic textile finishing agents. In fabric softeners, such ingredients adversely affect the absorbency of treated fabrics.

2Ie of the invention

The aim of the invention are more highly concentrated fabric softeners based on aqueous dispersions of quaternary Fottsäuretriethdnolaminestern having improved performance characteristics and economically advantageous composition.

Explanation of the essence of the invention

Known higher concentrated fabric softeners based on aqueous dispersions of quaternary fatty acid triethanolamine esters have been found to hyarophobize treated textiles to a considerable extent and contain significant amounts of non-fabric softening ballast and other costly auxiliaries.

The object of the invention is the development of new higher-concentrated laundry softeners which hydrophobieren to a lesser extent at least constant textilweichmachender and antistatic effect treated textiles. In addition, the proportion of non-textile softening ballast and other cost-causing auxiliary substances must be reduced. According to the invention, this object is achieved by more highly concentrated fabric softeners with the following composition (% by mass):

A) 5-10% quaternary triethanolamine esters of fatty acids of chain length CiT-C ₂₂ B) 0.5-0.8% water-soluble or water-dispersible salts of primary fatty amines of chain length C ₁₄ -C ₂₂ C) 0.3-0.8% diethanolamides of fatty acids of chain length C ₁₂ -C ₂₂ with 2-3C atoms in the alkanol radicals

D) 0.1-0.3% glycols and 100% water

A preferred ingredient A is technical triethanolamine stearate methcsulfate. The constituent B underlying fatty amines preferably have a chain length of Ci ₆ -C ₈ . For salt formation z. B. Formic, acetic, propionic, benzoic, salicylic, adipic, lactic, gluconic, succinic, glycolic and hydrohalic acids

suitable.

Preferred ingredient C are diethanolamides of fatty acids of chain length C ₁₆ -C ₂₂ . As component D dipropylene, tripropylene, ethylenedi, ethyltri-, 1,2-propylene glycol or mixtures thereof are suitable. The new agents are available when the components in the heat are mixed homogeneously with the appropriate amount of water

become.

The compositions may also contain conventional components generally used in small amounts, such as dyes, perfume,

optionally Hilfsstoffo zu.deren incorporation and other auxiliaries are added.

The higher-concentration fabric softeners according to the invention have the following advantages:

- significantly lower hydrophobicity of treated textiles; relative improvement of absorbency by about 30%

- Despite lower hydrophobicity practically no decrease in textile softening and antistatic effect; towards agents according to DD-WP 230711 significant improvement in the antistatic effect

- Significant reduction in the content of nichttextilweichmachenden ballast and other cost-causing excipients, since neither large amounts of glycol or alkyl polyglycol ethers, free fatty amines, oxyethylated and quatsrnierte fatty amines or polyethylene dispersions are included

- In addition to the quaternary Fettsäuretriethanolaminestern only water and summarily 0.9-1.9Ma .-% other substances

Not foreseeable and surprising was the finding that the advantageous performance properties of the new agents are optimal only in the limits of the invention to advantage. This speaks for a complex mode of action of the components.

embodiments

% Values are% by mass

The following formulations are by mixing the components with the appropriate amount of water at about 350K

available.

example 1 technical triethanolamine stearate methosulfate 12% (about 50% active substance) Cie-Cie-Fettami.isalz hydrochloric acid 0.6% Cie-C ₂₂ fatty acid diethanolamide 0.4% 1,2-P.opylenglycol 0.3% water to 100.0% Example 2 technical triethanolamine stearate methosulfate 15% (about 50% active substance) Ci6-Ci8 fatty amine salt of acetic acid 0.7% C _{1s C22} -Fettsäurodiethano! Amide 0.3% tripropylene 0.2% water to 100.0%

Example 3

18%

0.8%

0.7%

0.3%

100.0%

technical triethanolmine stearate-muthosulfate

(about 50% active substance)

Cig-Cia fatty amine salt of lactic acid C, -C _{2 ff} j-fatty acid diethanolamide dipropylene

water

The following table contains the results of the physico-chemical and performance tests of inventive and known higher-concentration laundry softeners. The data prove the progress of the agents according to the invention over the known prior art.

table formulation

Suction capacity according to TGL 29 800

Fabric softening effect according toGL29800 (points)

antistatic effect 3α · 1Ο- ¹² (Ω) "

execution 64 example 1 34 2 62 3 46 A 48 B 52 C

3.6 3.7 3.8 3.7 3.7 3.8

18 15 10 37 740 35

Remarks:

A = embodiment according to DD-WP159 263 B = embodiment according to DD-WP230711

C = commercially available higher concentrated fabric softener based on quaternary fatty acid trietlianolamine ester "o _A - Fibers: electrical resistance of a treated polyamide fabric at 296 K and 30% relative humidity treatment in liquor ratio 1: 40.1.5 g fabric softener / l water Comparison untreated weft: o _A > 500 10 "il.

If fatty amine content is reduced to 0.3% by mass in working example 1, a suction capacity of 66% is found on the treated fabric, but a fabric softening effect of ν = 2.2 points.

Claims (4)

1. Higher concentrated fabric softener, characterized in that they A) 5-10Ma .-% quaternary triethanolamine esters of fatty acid at the chain length C ₁₂ -C22 B) 0.5-0.8% by weight of water-soluble or water-dispersible salts of the primary fatty arm in the Ketton length Cu-C2i C) 0.3-0.8% by weight of dialkanolamides of fatty acids of chain length C ₁₂ -C22 with 2-3C atoms in the alkanol radicals D) 0.1-0.3 mass% of glycols and to 100.0 wt .-% water. 2. fabric softener according to item 1, characterized in that as component A preferably technical Triethanolaminstearatmethosulfat is used. ?. Laundry softener according to item 1, characterized in that the fatty amines underlying component B preferably have a chain length of C ₁₆ -C ₁₈ . 4. fabric softener according to item 1, characterized in that are preferably used as component C Oiethanolamide of fatty acids of chain length C ₁₆ -C ₂₂ . 5. fabric softener according to item 1, characterized in that as component D dipropylene glycol, tripropylene glycol, ethylene glycol, ethylene triglycol, 1,2-propylene glycol or mixtures thereof are used.